In the standard (x, y) coordinate plane, which of the following lines goes through the point (0, 3) and is parallel to the line given by the equation y = 2x + 1?

The density of the cube is 40

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.